pv/binding/device.cpp

   1 /*
   2  * This file is part of the PulseView project.
   3  *
   4  * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <cstdint>
  21
  22 #include <QDebug>
  23
  24 #include "device.hpp"
  25
  26 #include <pv/prop/bool.hpp>
  27 #include <pv/prop/enum.hpp>
  28 #include <pv/prop/int.hpp>
  29
  30 #include <libsigrokcxx/libsigrokcxx.hpp>
  31
  32 using boost::optional;
  33
  34 using std::function;
  35 using std::make_pair;
  36 using std::pair;
  37 using std::set;
  38 using std::shared_ptr;
  39 using std::string;
  40 using std::vector;
  41
  42 using sigrok::Capability;
  43 using sigrok::Configurable;
  44 using sigrok::ConfigKey;
  45 using sigrok::Error;
  46
  47 using pv::prop::Bool;
  48 using pv::prop::Enum;
  49 using pv::prop::Int;
  50 using pv::prop::Property;
  51
  52 namespace pv {
  53 namespace binding {
  54
  55 Device::Device(shared_ptr<sigrok::Configurable> configurable) :
  56         configurable_(configurable)
  57 {
  58
  59         auto keys = configurable->config_keys();
  60
  61         for (auto key : keys) {
  62
  63                 auto capabilities = configurable->config_capabilities(key);
  64
  65                 if (!capabilities.count(Capability::GET) ||
  66                         !capabilities.count(Capability::SET))
  67                         continue;
  68
  69                 string name_str;
  70                 try {
  71                         name_str = key->description();
  72                 } catch (Error e) {
  73                         name_str = key->name();
  74                 }
  75
  76                 const QString name = QString::fromStdString(name_str);
  77
  78                 const Property::Getter get = [&, key]() {
  79                         return configurable_->config_get(key); };
  80                 const Property::Setter set = [&, key](Glib::VariantBase value) {
  81                         configurable_->config_set(key, value);
  82                         config_changed();
  83                 };
  84
  85                 switch (key->id()) {
  86                 case SR_CONF_SAMPLERATE:
  87                         // Sample rate values are not bound because they are shown
  88                         // in the MainBar
  89                         break;
  90
  91                 case SR_CONF_CAPTURE_RATIO:
  92                         bind_int(name, "%", pair<int64_t, int64_t>(0, 100),
  93                                 get, set);
  94                         break;
  95
  96                 case SR_CONF_PATTERN_MODE:
  97                 case SR_CONF_BUFFERSIZE:
  98                 case SR_CONF_TRIGGER_SOURCE:
  99                 case SR_CONF_TRIGGER_SLOPE:
 100                 case SR_CONF_COUPLING:
 101                 case SR_CONF_CLOCK_EDGE:
 102                         bind_enum(name, key, capabilities, get, set);
 103                         break;
 104
 105                 case SR_CONF_FILTER:
 106                 case SR_CONF_EXTERNAL_CLOCK:
 107                 case SR_CONF_RLE:
 108                 case SR_CONF_POWER_OFF:
 109                         bind_bool(name, get, set);
 110                         break;
 111
 112                 case SR_CONF_TIMEBASE:
 113                         bind_enum(name, key, capabilities, get, set, print_timebase);
 114                         break;
 115
 116                 case SR_CONF_VDIV:
 117                         bind_enum(name, key, capabilities, get, set, print_vdiv);
 118                         break;
 119
 120                 case SR_CONF_VOLTAGE_THRESHOLD:
 121                         bind_enum(name, key, capabilities, get, set, print_voltage_threshold);
 122                         break;
 123
 124                 case SR_CONF_PROBE_FACTOR:
 125                         if (capabilities.count(Capability::LIST))
 126                                 bind_enum(name, key, capabilities, get, set, print_probe_factor);
 127                         else
 128                                 bind_int(name, "", pair<int64_t, int64_t>(1, 500), get, set);
 129                         break;
 130
 131                 default:
 132                         break;
 133                 }
 134         }
 135 }
 136
 137 void Device::bind_bool(const QString &name,
 138         Property::Getter getter, Property::Setter setter)
 139 {
 140         assert(configurable_);
 141         properties_.push_back(shared_ptr<Property>(new Bool(
 142                 name, getter, setter)));
 143 }
 144
 145 void Device::bind_enum(const QString &name,
 146         const ConfigKey *key, set<const Capability *> capabilities,
 147         Property::Getter getter,
 148         Property::Setter setter, function<QString (Glib::VariantBase)> printer)
 149 {
 150         Glib::VariantBase gvar;
 151         vector< pair<Glib::VariantBase, QString> > values;
 152
 153         assert(configurable_);
 154
 155         if (!capabilities.count(Capability::LIST))
 156                 return;
 157
 158         Glib::VariantIter iter(configurable_->config_list(key));
 159         while ((iter.next_value(gvar)))
 160                 values.push_back(make_pair(gvar, printer(gvar)));
 161
 162         properties_.push_back(shared_ptr<Property>(new Enum(name, values,
 163                 getter, setter)));
 164 }
 165
 166 void Device::bind_int(const QString &name, QString suffix,
 167         optional< pair<int64_t, int64_t> > range,
 168         Property::Getter getter, Property::Setter setter)
 169 {
 170         assert(configurable_);
 171
 172         properties_.push_back(shared_ptr<Property>(new Int(name, suffix, range,
 173                 getter, setter)));
 174 }
 175
 176 QString Device::print_timebase(Glib::VariantBase gvar)
 177 {
 178         uint64_t p, q;
 179         g_variant_get(gvar.gobj(), "(tt)", &p, &q);
 180         return QString::fromUtf8(sr_period_string(p, q));
 181 }
 182
 183 QString Device::print_vdiv(Glib::VariantBase gvar)
 184 {
 185         uint64_t p, q;
 186         g_variant_get(gvar.gobj(), "(tt)", &p, &q);
 187         return QString::fromUtf8(sr_voltage_string(p, q));
 188 }
 189
 190 QString Device::print_voltage_threshold(Glib::VariantBase gvar)
 191 {
 192         gdouble lo, hi;
 193         g_variant_get(gvar.gobj(), "(dd)", &lo, &hi);
 194         return QString("L<%1V H>%2V").arg(lo, 0, 'f', 1).arg(hi, 0, 'f', 1);
 195 }
 196
 197 QString Device::print_probe_factor(Glib::VariantBase gvar)
 198 {
 199         uint64_t factor;
 200         factor = g_variant_get_uint64(gvar.gobj());
 201         return QString("%1x").arg(factor);
 202 }
 203
 204 }  // namespace binding
 205 }  // namespace pv